Removing text from doc/command-line.md to fix the sourmash signatur…

…e split docs (#1431)

* Add ORCID to checklist

* Changes made to ORCID checklist

* Made a small change to ORCID checklist

* Markdown issue fixed.

* Rename all instances of load_file_list_of_signatures

* Removed the text from doc/command-line.md

Co-authored-by: C. Titus Brown <titus@idyll.org>

doc/command-line.md

@@ -593,9 +593,7 @@ signature license: CC0
 ### `sourmash signature split` - split signatures into individual files
 
 Split each signature in the input file(s) into individual files, with
-standardized names.  **Note:** unlike the rest of the sourmash sig
-commands, `split` can load signatures from LCA and SBT databases as
-well.
+standardized names.
 
 For example,
 ```